Low overhead subband physical downlink control for communication systems

    公开(公告)号:US11038640B2

    公开(公告)日:2021-06-15

    申请号:US16475782

    申请日:2017-12-29

    Applicant: Apple Inc.

    Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to obtain channel information and data information for a user equipment (UE) device, determine control information for the UE device based on the obtained channel information and data information, generate a channel format for the determined control information and having varied subband sizes, and provide the channel format to the RF interface for a downlink transmission to the UE device.is configured to be employed within a base station.

    WIRELESS PERSONAL AREA NETWORK UNDERLYING CELLULAR NETWORKS

    公开(公告)号:US20200374695A1

    公开(公告)日:2020-11-26

    申请号:US16989151

    申请日:2020-08-10

    Applicant: Apple Inc.

    Abstract: This document discusses, among other things, a wireless personal-area network (PAN) underlying a cellular wide-area network (WAN). The PAN includes a wearable user equipment (UE-W) and a user equipment aggregation node (UE-AN). The UE-W includes processing circuitry to process data for communication with a network of the WAN through the UE-AN, and radio interface circuitry to communicate with the UE-AN through a first air interface. The UE-AN includes processing to process data for communication between the network of the WAN and the UE-W, and radio interface circuitry to communicate with the network of the WAN through the first air interface and with the UE-W through a second air interface. The UE-W and the UE-AN can share a network credential, appearing as a single device to the WAN.

    Synchronization signal block periodicity for cell reselection

    公开(公告)号:US12273830B2

    公开(公告)日:2025-04-08

    申请号:US17427165

    申请日:2020-02-13

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include apparatuses and methods for determining synchronization signal block (SSB) periodicity for cell reselection. In some embodiments, user equipment (UE) may establish a first connection with a first integrated access and backhaul (IAB) node using a first SSB periodicity. The UE may perform a cell reselection process and determine whether a number of candidate IAB nodes include a candidate IAB node with a previously stored candidate SSB periodicity corresponding to the candidate IAB node. If the UE identifies a candidate SSB periodicity, the UE may establish a second connection with the candidate IAB node using the candidate SSB periodicity. If the UE does not identify a previously stored candidate SSB periodicity, the UE may establish a second connection with a second IAB node using a second SSB periodicity that is less than the first SSB periodicity.

    Low-latency uplink scheduling requests

    公开(公告)号:US12177831B2

    公开(公告)日:2024-12-24

    申请号:US17421491

    申请日:2020-01-10

    Applicant: Apple Inc.

    Abstract: Disclosed herein are systems and methods for providing low-latency uplink scheduling requests. For instance, a user equipment (UE) can determine a time of transmission of uplink (UL) data by the UE to a UL device. The UE can further generate control data comprising the determined time of transmission and size information for the UL data. The UE can further provide the control data to the UL device prior to providing the UL data to the UL device. The UE can further receive a UL grant from the UL device. The UE can further provide the UL data to the UL device in response to receiving the UL grant.

    System and method for contention based beam failure recovery request in secondary cell

    公开(公告)号:US12057916B2

    公开(公告)日:2024-08-06

    申请号:US17426770

    申请日:2020-02-10

    Applicant: Apple Inc.

    Abstract: An approach is described for a user equipment (UE) to provide contention-based beam failure operation in a second cell (SCell), where the UE includes processor circuitry and radio front end circuitry. The processor circuitry is configured to encode a first message including a beam failure recovery request (BFRQ), wherein the BFRQ is indicative of a beam failure, and to decode a second message from a gNB, wherein the second message includes a beam failure recovery (BFR) response responsive to the BFRQ. The processor circuitry is further configured to encode a third message including a UE identification (ID) in response to decoding the second message, and to decode a fourth message from the gNB, wherein the fourth message includes collision handling for beam failure recovery by the UE. The radio front end circuitry is coupled to the processor circuitry, and the radio front end circuitry is configured to transmit the first message and the third message to the gNB, and to receive the second message and the fourth message from the gNB.

    Signaling of timing advance (TA) offsets in IAB networks

    公开(公告)号:US12028822B2

    公开(公告)日:2024-07-02

    申请号:US17286217

    申请日:2019-10-24

    Applicant: Apple Inc.

    CPC classification number: H04W56/0045 H04W56/0055 H04W74/0833

    Abstract: Embodiments of an integrated access and backhaul (IAB) node, a User Equipment (UE), and methods of communication are generally described herein. An IAB node may operate as a relay between an IAB donor and a UE. The IAB node may receive, from the IAB donor, first signaling that indicates a first timing advance (TA) offset between the IAB donor and the IAB node. The IAB node may determine a second TA offset between the IAB node and the UE. The second TA offset may be based on a timing difference between a transmission time of a downlink frame transmitted to the UE and a reception time of an uplink frame from the UE. The IAB node may transmit, to the UE, second signaling that indicates the first TA offset and the second TA offset.

    Dynamic indication of soft resource availability

    公开(公告)号:US11985651B2

    公开(公告)日:2024-05-14

    申请号:US17439313

    申请日:2020-03-26

    Applicant: Apple Inc.

    CPC classification number: H04W72/1263 H04W72/0446 H04W76/10 H04W88/14

    Abstract: Disclosed are methods, systems, apparatus, and computer programs for determining availability of soft time-domain resources for a node in an integrated access and backhaul (IAB) network. In one aspect, a method includes receiving a Radio Resource Control (RRC) message from the IAB donor; determining, based on the RRC message, whether soft time-domain resources are available for the IAB node; and in response to determining that soft time-domain resources are available, scheduling a transmission with a child node using the available soft time-domain resources.

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